Gun sight



B. KYLE 2,148,272

GUN SIGHT Filed June 4, 1937 INVENTOR vvl'rnsssas Bvuotge Kyle n-- BYMMV ATTORNEYS rg a e Patented Feb. 21, 1939 UNITED STATES PATENT CFFICE2 Claims.

This invention relates to gun sights, an object of the invention beingto provide an improved construction and arrangement of sight adjustablefor distance as well as for windage, and which is especially adapted foruse on rifles having a receiver bridge, although it is to be distinctlyunderstood that the invention is not limited to this particular use butis capable of a Wide range of utility in association with firearms ofvarious styles.

'Ihe invention embodies many novel features of construction andcombinations and arrangements of parts al1 of which will be more fullyhereinafter described and pointed out in the claims.

In the accompanying drawing- Fig. 1 is a fragmentary view in sideelevation showing a rie equipped with my improved sight;

Fig. 2 is a plan view of the sight;

Fig. 3 is a view in transverse section on the line 3-3 of Fig. 2;

Fig. 4 is a view in longitudinal section on the line 4 4 of Fig. 2;

Fig. 5 is a fragmentary view in section on the line 5-5 of Fig. 2;

Fig. 6 is a view similar to Fig. 3 illustrating a modification.

IIJ represents a firearm, such as a rie, having bolt action and providedwith the ordinary receiver bridge II on which my improved sight islocated.

'I'he sight includes a base I2 which constitutes an open frame in whichan elevation bar I3 is mounted, and on this elevation bar an aperturedblock I4 is secured, the elevation bar having improved means forvertically adjusting the same for range and the apertured block havingimproved means for laterally adjusting the same for windage, all ofwhich will now be described in detail.

The elevation bar I3 is provided in its under face with a recess I5which encloses an internal screw-threaded sleeve I6 which is integralwith and constitutes a xed part of the base I2 (Fig. 2). The elevationbar I3 has an opening I1 therein through which a screw I8 projects, andthe threaded end of this screw engages the internal threads of thesleeve I6. A coil spring I9 is located between a flange 20 on the sleeveI6 and the elevation bar so as to exert'an upward pressure on theelevation bar to elevate the latter when permitted by the screw I8. Thehead 2I of the screw I8 is countersunk in a recess 22 in the elevationbar I3 and is provided with a screw driver receiving groove 23. The head2| of the screw I8 is also provided with a circular series of notches 24in which a spring linger 25 engages so as to hold the screw againstaccidental movement and to give a snapping sound to the adjustment ofthe screw as the finger snaps into the notches 24.

The elevation bar I3 is provided with a transversely extending dovetailgroove 26 in which a dovetail tenon 21 on one side of the aperturedblock I4 is located and is movable. This tenon 21 is formed with ascrew-threaded opening 28 receiving an adjusting screw 29, and thisadjusting screw 29 is provided with an annular enlargement 36 turning ina recess 3| in the base of the groove 26 to hold the screw againstlongitudinal movement, and the head 32 of this screw 29 located at oneend of the screw is provided with a screw driver receiving groove 33.

In Fig. 6 I illustrate a slightly modified form of adjusting means forthe apertured block I4. In this form of the invention the block I4 isprovided centrally with a dovetail tenon 34 riding in the groove 26, andthe screw 35 which projects through the threaded opening 36 in the tenonis formed at its inner end with a smooth portion 31 projecting throughan opening 38 in a wall 39, with a cross pin 40 extending through theend of the screw so that while the screw turns freely it is thus heldrmly against longitudinal movement.

It is thus apparent that when the screw I8 is turned in one direction itwill cause the elevation bar I3 to be elevated, and when turned in theother direction will cause the bar to be lowered within certain limits.This movement is limited by a stopscrew 4I projected through the baseand into a groove 42 in the elevation bar. The screw 29 when turned inone direction will move the apertured block I4 to the right, and whenmoved in the other direction will move the same to the left, thus makingwindage allowance.

My improved sight embodies but relatively few parts; is of simpleconstruction; is not apt to get out of repair, and is not apt to beaccidentally adjusted because it will be noted that both of the screwshave screw driver receiving grooves therein and require the use of ascrew driver or other sharp tool to adjust them and there is no dangerof their being accidentally moved after proper adjustment.

While I have illustrated and described what I believe to be preferredembodiments of my invention, it is obvious that various changes may bemade with regard to the form and arrangement of parts without departingfrom my invention, and hence I do not limit myself to the precisedetails set forth but consider myself at liberty to make such changesand alterations as fairly fall within the spirit and scope of theclaims.

I claim:

1. The combination with a receiver of a rifle, of a rear sightassemblage, including a base conforming on its underside to the shape ofsaid receiver and adapted to t snugly thereon, said base having upwardlyextending walls and an in ternally threaded sleeve at one end thereofextending upwardly between said walls, a block within said walls saidwalls guiding and limiting the movement of said block, said block havinga sight mounted for movement transversely of said block at one endthereof and a cavity atfthe other end thereof above adapted to receivesaid internally threaded sleeve, there being an opening through saidblock communicating with said cavity, a screw extending through saidopening and engaging said internally threaded sleeve, and a spring onthe exterior of said sleeve exerting pressure upwardly against saidblock.

2. A gun sight including a base having upstanding enclosing walls and aninternally threaded sleeve adjacent one end extending upwardly withinsaid walls, an elevation bar mounted to slide in 30 a direction parallelto said walls for varying the elevation of the sight, said walls guidingthe movement of said bar, said bar having at one end portion a primarybore extending from the bottom toward the top of the bar, a secondarybore extending from the top downwardly substantially in line with theprimary bore and a connecting aperture connecting said bores and of alesser diameter than either of said bores, the primary bore beingpositioned to accommodate said sleeve, a spring surrounding said sleevepositioned to act on one end thereof and on the material of saidelevation bar between said bores for giving said elevation bar atendency to move upwardly, a screw extending through said aperturethreaded into said sleeve and provided with a head positioned in thesecondary bore wherebxT upon turning the screw in one direction saidelevation bar will be moved downwardly against the action of said springand when moved in the opposite direction said spring will be allowed tofunction to raise said elevation bar, said elevation bar adjacent theend opposite said bores having Ya transverse dovetail groove, a dovetailtenon slidably mounted in said groove, said tenon being provided with anupstanding part having a sight opening, and threaded means coacting withsaid tenori and said elevation bar for adjusting the tenon transverselyof the elevation bar.

BRUDGE KYLE.

